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Crank/No start Fuel injector spraying but sparkplug is dry

8102 Views 7 Replies 4 Participants Last post by  ktriebol
Hello everyone, I have been lurking here for years now and the contributors here have helped me MANY times, so thank you!

My problem, as described in the title, is that the engine on my 2011 420 trx will not start. It cranks when I press the starter, but that's it. I know it is not getting fuel to the cylinder because the spark plug is dry immediately after trying to start it. Pulling the fuel injector out of the throttle body and hitting the starter, I can see that the injector is spraying gas. If I loosen the throttle body hose that attaches to the motor and hit the starter, I see gas spray out from the throttle body. I changed the filter inside the fuel pump and cleaned the fuel injector by spraying some Seafoam through it. I tried starting it again and got one little cough out of the engine, but the plug is still dry.

My only next move, I think, is to check and adjust the intake valve. Please advise if there is anything less invasive that I am missing.

Thank you again for being such an amazing resource and let me know if this is not the appropriate place for this post.

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It seems to me that your compression is way low. Maybe the compression release mechanism on the cam shaft is jammed.
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